chore: 初始化项目仓库

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-05-31 21:27:39 +08:00
commit b7addb5c7a
50 changed files with 15964 additions and 0 deletions
@@ -0,0 +1,104 @@
+<script setup lang="ts">
+import { getHeadingsFromBody } from '~/utils/content-ast'
+import type { Heading } from '~/utils/content-ast'
+
+const props = defineProps<{
+  body?: Record<string, any> | null
+}>()
+
+const headings = ref<Heading[]>([])
+const activeId = ref('')
+let observer: IntersectionObserver | undefined
+
+const NAV_HEIGHT = 40
+
+const minLevel = computed(() => {
+  if (!headings.value.length) return 1
+  return Math.min(...headings.value.map((h) => h.level))
+})
+
+function indentClass(level: number): string {
+  const depth = Math.max(0, level - minLevel.value)
+  return ['pl-3', 'pl-6', 'pl-9', 'pl-12', 'pl-14', 'pl-16'][depth] || 'pl-16'
+}
+
+function buildHeadings() {
+  headings.value = getHeadingsFromBody(props.body)
+}
+
+function startObserver() {
+  observer?.disconnect()
+  if (!headings.value.length) return
+  nextTick(() => {
+    const els = headings.value
+      .map((h) => document.getElementById(h.id))
+      .filter(Boolean) as HTMLElement[]
+    if (!els.length) return
+    observer = new IntersectionObserver(
+      (entries) => {
+        const visible = entries
+          .filter((e) => e.isIntersecting)
+          .sort((a, b) => a.boundingClientRect.top - b.boundingClientRect.top)
+        if (visible.length > 0) {
+          activeId.value = (visible[0].target as HTMLElement).id
+        }
+      },
+      { rootMargin: `${-(NAV_HEIGHT + 24)}px 0px -60% 0px`, threshold: 0 }
+    )
+    for (const el of els) observer.observe(el)
+    const firstVisible = els.find((el) => {
+      const r = el.getBoundingClientRect()
+      return r.bottom > NAV_HEIGHT + 24
+    })
+    activeId.value = (firstVisible || els[0]).id
+  })
+}
+
+buildHeadings()
+
+onMounted(() => { startObserver() })
+
+watch(() => props.body, () => {
+  buildHeadings()
+  if (headings.value.length) startObserver()
+}, { deep: true })
+
+onUnmounted(() => { observer?.disconnect() })
+
+function handleClick(e: MouseEvent, id: string) {
+  const el = document.getElementById(id)
+  if (!el) return
+  e.preventDefault()
+  activeId.value = id
+  const top = el.getBoundingClientRect().top + window.scrollY - (NAV_HEIGHT + 16)
+  window.scrollTo({ top, behavior: 'instant' })
+  history.replaceState(null, '', `#${id}`)
+}
+</script>
+
+<template>
+  <aside
+    v-if="headings.length > 0"
+    class="hidden xl:block fixed top-24 right-[max(1rem,calc((100vw-48rem)/2-18rem))] w-56 max-h-[calc(100vh-8rem)] overflow-y-auto pr-2 text-sm z-30"
+    aria-label="目录"
+  >
+    <div class="mb-2 text-xs font-semibold uppercase tracking-wide text-muted-foreground">目录</div>
+    <ul class="space-y-1 border-l border-border">
+      <li v-for="h in headings" :key="h.id">
+        <a
+          :href="`#${h.id}`"
+          class="block py-1 pr-2 border-l-2 -ml-px transition-colors"
+          :class="[
+            indentClass(h.level),
+            activeId === h.id
+              ? 'border-primary text-foreground font-medium'
+              : 'border-transparent text-muted-foreground hover:text-foreground hover:border-muted-foreground/40',
+          ]"
+          @click="handleClick($event, h.id)"
+        >
+          {{ h.text }}
+        </a>
+      </li>
+    </ul>
+  </aside>
+</template>